Comput Methods Programs Biomed - Computer simulation of MHD blood conveying gold nanoparticles as a third grade non-Newtonian nanofluid in a hollow porous vessel.

Tópicos

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Resumo

In this paper, heat transfer and flow analysis for a non-Newtonian third grade nanofluid flow in porous medium of a hollow vessel in presence of magnetic field are simulated analytically and numerically. Blood is considered as the base third grade non-Newtonian fluid and gold (Au) as nanoparticles are added to it. The viscosity of nanofluid is considered a function of temperature as Vogel's model. Least Square Method (LSM), Galerkin method (GM) and fourth-order Runge-Kutta numerical method (NUM) are used to solve the present problem. The influences of the some physical parameters such as Brownian motion and thermophoresis parameters on non-dimensional velocity and temperature profiles are considered. The results show that increasing the thermophoresis parameter (N(t)) caused an increase in temperature values in whole domain and an increase in nanoparticles concentration just near the inner wall of vessel. Furthermore by increasing the MHD parameter, velocity profiles decreased due to magnetic field effect.

Resumo Limpo

paper heat transfer flow analysi nonnewtonian third grade nanofluid flow porous medium hollow vessel presenc magnet field simul analyt numer blood consid base third grade nonnewtonian fluid gold au nanoparticl ad viscos nanofluid consid function temperatur vogel model least squar method lsm galerkin method gm fourthord rungekutta numer method num use solv present problem influenc physic paramet brownian motion thermophoresi paramet nondimension veloc temperatur profil consid result show increas thermophoresi paramet nt caus increas temperatur valu whole domain increas nanoparticl concentr just near inner wall vessel furthermor increas mhd paramet veloc profil decreas due magnet field effect

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